Susan Polgar July 14, 2009 Chess Improvement, Chess Puzzles 8 Comments
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Maybe this (but i’m not sure)
if 1…Rc8 2.Kb7 Re8 3.Kb6
2.Rxf1 Kxf1 3.Kxa5 f5 4.Kb6 f4 5.Kb7 f3 6.c8Q Rxc8 7.Kxc8 f2 8.a5 Kg2(e2) 9.a6 f1Q 10.a7 draw
The most obvious line to me is:
1. Rc2 Kg1
2. Rf2 Kf2
4. Kc8 f5
5. Kb7 f4
6. Kb6 f3
7. Ka5 Ke3
8. Kb6 f2
9. a5 f1(Q)
18.Kb8 Kb6 and black will win since 19.a1(Q) loses to Qc7#, and a1(N) only delays the inevitable.
I can’t find a better variation for white that starts with this forced exchange of the c and f pawns- black’s king has just enough time to reach b6. So the answer seems to lie elsewhere.
I think soylents line is correct. But its realy interesting. The “most logical” line is:
10.a7 Qf3 -+ (yanceys line in an other moveorder in the begining)
The remarkable thing is, that in both lines the white king did make the same number of moves (Kb7-c8-b7-b6-a5-b6 = 5 moves and Kb7-b6-a5-b6-b7-c8 = 5 moves). The decisive difference is the position at the end.
I agree, Soylent Green’s line is the correct one. The decisive difference is that the black king takes on f1 rather than f2 in my line, and is forced to concede a critical tempo. And changing the move order by playing f5 early doesn’t change anything.
It is amazing but 1 Kb6 does appear to draw. My line is about the same as Soylent’s. I just feel really weird calling it a draw when black is up a rook in the main line with another queen in the making. Can I trust my calculations? But 1 c8=Q is hopeless for White so 1 Kb6
(or Ka6) seems like white’s only hope.
“One step behind two steps forward”
How can I follow the analisis you people give? I don’t have a chess board.
It is amuzing that 1c=Q looses.
One short variant 1 Kb6 Rc8 2Kb7!=
(2 Kxa5 Rxc7 wins)